CatEye
TL-AU165 W/SP-5

Details

CatEye Auto Technology in a small visible package. The TL-AU165 automatically turns on and starts flashing when darkness and motion are detected by the motion and light sensors (light turns off automatically when you stop your ride). The stay-on function continues flashing while you're paused while riding to ensure safety during traffic stops. Even if the battery runs out, the reflector continues to ensure rear visibility. The TL-AU165 runs for 6 months without replacing the battery (when used for 30 minutes a day).